There is a lot of confusion in the consumer world on whether or not they have to pay a deductible in the event of a glass breakage claim. Glass breakage falls under comprehensive coverage. Comprehensive coverage generally comes with a deductible (what the insured will pay before insurance kicks in).
Whether or not you must pay a deductible on glass claims largely depends on the state in which you are insured or the insurance carrier you are working with. In the state of Kentucky there is no deductible for glass breakage claims regardless of the insurance carrier. However, the damaged vehicle must carry comprehensive coverage at the time of loss.
Other states may be subject to deductibles for glass breakage; however, some insurance carriers do offer full glass coverage (no deductible) as an additional coverage on their policies. Consult with your agent if you have additional questions regarding how your policy reads.